Patents by Inventor Scott S. Dahlgren
Scott S. Dahlgren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20210148406Abstract: Interfacing surfaces of adjacent tiles in a downhole tool may combine to form a tortuous path therebetween. In various embodiments, this tortuous path may run generally parallel and/or perpendicular to a top surface of the tiles. One example of such a tortuous path may be created by a protrusion extending from an interfacing surface of one of the tiles that may fit snugly within a cavity receding into an interfacing surface of another of the tiles.Type: ApplicationFiled: November 17, 2020Publication date: May 20, 2021Inventors: David C. Hoyle, Scott S. Dahlgren, David R. Hall, Malcolm R. Taylor
-
Patent number: 10731420Abstract: A drill bit may include a bit body and at least two cones assemblies including at least two drive cylinders having at least two cones. The at least two cone assemblies are mounted on the bit body. The drill bit may also include an indexing mechanism coupled to the bit body and configured to rotate and lock at least one drive cylinder. A method of operating the drill bit may include providing fluid to the drill bit, rotating the drill string to drill formation, moving the indexing mechanism an axial distance within a central chamber of the drill bit, rotating the at least two indexable structures as the indexing mechanism moves, and locking the at least two indexable structures.Type: GrantFiled: March 27, 2016Date of Patent: August 4, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Scott S. Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan D. Marshall, John J. Pierce, Yuelin Shen, Balasubramanian Durairajan, Geoffrey Charles Downton, Michael George Azar
-
Patent number: 10711833Abstract: A mechanical bearing includes a hard bearing element and a support element affixed to the hard bearing element, with a joining element between the hard bearing element and the support element, the joining element being more flexible than the hard bearing element and the support element.Type: GrantFiled: September 15, 2016Date of Patent: July 14, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Daniel Manwill, Scott S. Dahlgren, David R. Hall, Jonathan D. Marshall
-
Patent number: 10683895Abstract: Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.Type: GrantFiled: July 19, 2018Date of Patent: June 16, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David R. Hall, Jonathan D. Marshall, Scott S. Dahlgren, Daniel Manwill, R. Craig Boswell, Scott Richard Woolston
-
Publication number: 20180320740Abstract: Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.Type: ApplicationFiled: July 19, 2018Publication date: November 8, 2018Inventors: David R. Hall, Jonathan D. Marshall, Scott S. Dahlgren, Daniel Manwill, R. Craig Boswell, Scott Richard Woolston
-
Publication number: 20180266480Abstract: A mechanical bearing includes a hard bearing element and a support element affixed to the hard bearing element, with a joining element between the hard bearing element and the support element, the joining element being more flexible than the hard bearing element and the support element.Type: ApplicationFiled: September 15, 2016Publication date: September 20, 2018Inventors: Daniel Manwill, Scott S. Dahlgren, David R. Hall, Jonathan D. Marshall
-
Patent number: 10030704Abstract: Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.Type: GrantFiled: March 4, 2015Date of Patent: July 24, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David R. Hall, Jonathan D. Marshall, Scott S. Dahlgren, Daniel Manwill, R. Craig Boswell, Scott Richard Woolston
-
Publication number: 20180087323Abstract: A drill bit may include a bit body and at least two cones assemblies including at least two drive cylinders having at least two cones. The at least two cone assemblies are mounted on the bit body. The drill bit may also include an indexing mechanism coupled to the bit body and configured to rotate and lock at least one drive cylinder. A method of operating the drill bit may include providing fluid to the drill bit, rotating the drill string to drill formation, moving the indexing mechanism an axial distance within a central chamber of the drill bit, rotating the at least two indexable structures as the indexing mechanism moves, and locking the at least two indexable structures.Type: ApplicationFiled: March 27, 2016Publication date: March 29, 2018Inventors: Scott S. Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan D. Marshall, John J. Pierce, Yuelin Shen, Balasubramanian Durairajan, Geoffrey Charles Downton, Michael George Azar
-
Publication number: 20170108039Abstract: Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.Type: ApplicationFiled: March 4, 2015Publication date: April 20, 2017Applicant: Schlumberger Techology CorporationInventors: David R. Hall, Jonathan D. Marshall, Scott S. Dahlgren, Daniel Manwill, R. Craig Boswell, Scott Richard Woolston
-
Patent number: 9539781Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with at least three canisters disposed therein, each comprising an axis passing through a center of the body. Such a configuration may allow for maximum planes of symmetry within the cell.Type: GrantFiled: August 27, 2015Date of Patent: January 10, 2017Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
-
Patent number: 9539782Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with a plurality of canisters disposed therein and at least one unique heater element adjacent each of the canisters. Heat may be generated within such a press by forming an electrical circuit with the unique heater element and anvils surrounding the cell.Type: GrantFiled: August 27, 2015Date of Patent: January 10, 2017Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
-
Publication number: 20160059505Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with at least three canisters disposed therein, each comprising an axis passing through a center of the body. Such a configuration may allow for maximum planes of symmetry within the cell.Type: ApplicationFiled: August 27, 2015Publication date: March 3, 2016Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
-
Publication number: 20160059506Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with a plurality of canisters disposed therein and at least one unique heater element adjacent each of the canisters. Heat may be generated within such a press by forming an electrical circuit with the unique heater element and anvils surrounding the cell.Type: ApplicationFiled: August 27, 2015Publication date: March 3, 2016Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
-
Publication number: 20150008041Abstract: A downhole tool may be used to enlarge and widen a wellbore. The downhole tool may include a reamer with a mandrel that includes a rib extending radially outward from a cylindrical body of the mandrel. The rib may define one or more grooves. A cutter block or other expandable member may be positioned adjacent the rib and may include one or more extensions that mate with the grooves. The rib and cutter block may be positioned within a slot of a housing. The housing may also include one or more grooves on a surface along the slot. The grooves along the slot and the grooves on rib may mate with extensions on opposing sides of the expandable member to define a path by which the expandable member moves between expanded and retracted positions.Type: ApplicationFiled: July 2, 2014Publication date: January 8, 2015Inventors: David R. Hall, Jonathan D. Marshall, Adam R. Aquino, Scott S. Dahlgren
-
Patent number: 8421287Abstract: What is claimed is a downhole tool string component comprising a generator. The generator may comprise a toroidal stator comprising an interior channel formed between inward extending stator poles. A coil of wire is disposed within the interior channel, and a plurality of magnets are rotatably disposed proximate each pole. A downhole tool string component comprises a bore to receive a flow of drilling fluid comprising a central passage and at least one peripheral passage. A compliant member is disposed within the bore and forms an internal diameter of the central passage, and at least one opening. The at least one opening comprises an internal area within the compliant member to divert the flow of drilling fluid into the at least one peripheral passage. The compliant member comprises a compliant property allowing the internal area of the at least one opening to change thus changing the amount of diverted drilling fluid.Type: GrantFiled: April 26, 2010Date of Patent: April 16, 2013Inventors: David R. Hall, Scott S. Dahlgren
-
Patent number: 8353354Abstract: A crawler system for an earth boring system comprises at least two expandable tools along a common axis and spaced apart from each other along the common axis by a piston cylinder device. The at least two expandable tools comprise a mandrel comprising a tubular body and an outer diameter, a plurality of blades, and a slidable sleeve capable of manipulating the plurality of blades into collapsed and expanded positions. The plurality of blades of one of the at least two expandable tools expand to an expanded position and engage a borehole wall. The piston cylinder device anchors against the engagement between the borehole wall and one of the at least two expandable tools to axially translate the other of the at least two expandable tools.Type: GrantFiled: July 14, 2010Date of Patent: January 15, 2013Inventors: David R. Hall, Scott S. Dahlgren, Jonathan Marshall
-
Patent number: 8333254Abstract: In one aspect of the present invention, a steering assembly for downhole directional drilling comprises a drill bit comprising a cutting portion and an outer diameter. A steering ring disposed around the outer diameter, and at least one biasing mechanism disposed intermediate the outer diameter and the steering ring. The at least one biasing mechanism is configured to move the steering ring with respect to the outer diameter.Type: GrantFiled: October 1, 2010Date of Patent: December 18, 2012Inventors: David R. Hall, Jonathan Marshall, Scott S. Dahlgren
-
Patent number: 8281880Abstract: In one aspect of the present invention an expandable tool for an earth boring system comprises a mandrel comprising a tubular body and an outer diameter, a plurality of blades disposed about the outer diameter, and a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions.Type: GrantFiled: July 14, 2010Date of Patent: October 9, 2012Inventors: David R. Hall, Scott S. Dahlgren, Jonathan Marshall
-
Publication number: 20120080233Abstract: In one aspect of the present invention, a steering assembly for downhole directional drilling comprises a drill bit comprising a cutting portion and an outer diameter. A steering ring disposed around the outer diameter, and at least one biasing mechanism disposed intermediate the outer diameter and the steering ring. The at least one biasing mechanism is configured to move the steering ring with respect to the outer diameter.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Inventors: David R. Hall, Jonathan Marshall, Scott S. Dahlgren
-
Publication number: 20120012337Abstract: In one aspect of the present invention, a crawler system for an earth boring system comprises at least two expandable tools along a common axis and spaced apart from each other along the common axis by a piston cylinder device. The at least two expandable tools comprise a mandrel comprising a tubular body and an outer diameter, a plurality of blades, and a slidable sleeve capable of manipulating the plurality of blades into collapsed and expanded positions. The plurality of blades of one of the at least two expandable tools expand to an expanded position and engage a borehole wall. The piston cylinder device anchors against the engagement between the borehole wall and one of the at least two expandable tools to axially translate the other of the at least two expandable tools.Type: ApplicationFiled: July 14, 2010Publication date: January 19, 2012Inventors: David R. Hall, Scott S. Dahlgren, Jonathan Marshall